Deschampsia

Deschampsia is a genus of plants in the grass family, commonly known as hair grass or tussock grass. The genus is widespread across many countries.
The genus is named for French physician and naturalist Louis Auguste Deschamps (1765–1842).
Deschampsia species are used as food plants by the larvae of some species of Lepidoptera, including antler moth, the clay, clouded-bordered brindle, common wainscot, dark arches, dusky brocade, shoulder-striped wainscot, smoky wainscot and wall.
Deschampsia sometimes grow in boggy acidic formations, an example of which is the Portlethen Moss, Scotland.
Deschampsia antarctica is the world's most southern monocot, and one of only two flowering plants of Antarctica.
Some species, such as D. cespitosa and D. flexuosa, are grown as ornamental garden plants.
Species
Deschampsia airiformis (Steud.) Benth. & Hook.f. ex B.D.Jacks. – Chile, Argentina
Deschampsia angusta Stapf & C.E.Hubb. – Zaire, Kenya, Uganda
Deschampsia antarctica E.Desv. – Chile, Argentina, Antarctica, Falkland Islands, South Georgia, Crozet Islands, Heard-McDonald Islands, Kerguelen Islands, South Sandwich Islands
Deschampsia argentea Lowe – Azores, Madeira, Canary Islands
Deschampsia atropurpurea (Wahlenb.) Scheele – northern Eurasia, North America, Chile, Argentina
Deschampsia baicalensis Tzvelev – Irkutsk
Deschampsia berteroniana (Kunth) F.Meigen – Chile, Argentina
Deschampsia bottnica (Wahlenb.) Trin. – Kvarken Archipelago (part of Finland)
Deschampsia cespitosa (L.) P.Beauv. – temperate, subarctic, and alpine regions in North America, Eurasia, Africa, Australia, various islands
Deschampsia chapmanii Petrie – New Zealand incl Antipodes, Macquarie Islands
Deschampsia christophersenii C.E.Hubb. – Tristan da Cunha
Deschampsia cordillerarum Hauman – Chile, Argentina
Deschampsia danthonioides (Trin.) Munro – Annual hairgrass – Alaska, Yukon, British Columbia, western USA, Mexico
Deschampsia elongata (Hook.) Munro – Chile, Argentina, United States including Alaska, Canada, Mexico
Deschampsia flexuosa (L.) Trin – Eurasia, alpine areas in Africa; northern North America, southern South America, Falkland Islands
Deschampsia foliosa Hack. – Azores
Deschampsia gracillima Kirk New Zealand including Antipodes, Tasmania
Deschampsia kingii (Hook.f.) É.Desv. – Chile, Argentina
Deschampsia klossii Ridl. – Lesser Sunda Islands, New Guinea
Deschampsia koelerioides Regel – Siberia, Central Asia, China, Mongolia, Afghanistan, Pakistan
Deschampsia laxa Phil. – Chile, Argentina
Deschampsia leskovii Tzvelev – northern European Russia
Deschampsia liebmanniana (E.Fourn.) Hitchc. – Mexico
Deschampsia ligulata (Stapf) Henrard – Borneo
Deschampsia looseriana Parodi – Chile
Deschampsia maderensis (Hack. & Bornm.) Buschm. – Madeira
Deschampsia media (Gouan) Roem. & Schult. – central and southern Europe, Morocco, Caucasus
Deschampsia mejlandii C.E.Hubb. – Tristan da Cunha
Deschampsia mendocina Parodi – Argentina
†Deschampsia mexicana Scribn. – Mexico, apparently extinct
Deschampsia mildbraedii Pilg. – Cameroon
Deschampsia nubigena Hillebr. – Hawaii
Deschampsia parvula (Hook.f.) É.Desv. – Chile, Argentina, Falkland Islands, Anvers Island
Deschampsia patula (Phil.) Skottsb. – Chile, Argentina
Deschampsia pusilla Petrie – New Zealand South Island
Deschampsia robusta C.E.Hubb. – Tristan da Cunha
Deschampsia setacea (Huds.) Hack. – northern and western Europe
Deschampsia tenella Petrie – New Zealand
Deschampsia venustula Parodi – Chile, Argentina
Deschampsia wacei C.E.Hubb.- Tristan da Cunha
Formerly included
Deschampsia formerly included many species now placed in other genera, such as Aira, Antinoria, Bromus, Calamagrostis, Centropodia, Colpodium, Dissanthelium, Holcus, Periballia, Peyritschia, Poa, Trisetum and Vahlodea.
References
Poaceae genera
Taxa named by Palisot de Beauvois